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MECHANICAL ANCHORS > Liebig Anchor 

Expansion Anchor Systems

Typ AB & AS Liebig Anchor Liebig Anchor2

Typ AB & AS_2 

General purpose heavy duty anchor.

General purpose heavy duty anchor

 

Product Description:

  • Heavy duty anchor for high loads 
  • Torque-controlled mechanical anchor 

Features:

  • Economical high capacity anchor 
  • Approved for use in cracked and non-cracked concret 
  • Torque indication from domed washer 

Applicatons:

  • Steel construction 
  • Cable trays 
  • Railing 
  • Machines 
  • Gates 
  • Facades 
  • Lifting systems 
  • Base plates 

Function:

Application of the installation torque draws the anchor’s cone into the thick-walled expansion sleeve. This causes the sleeve to be pressed against the sidewalls of the hole and develops tension resistance through friction.

Material:

  • Grade 8.8 carbon steel, zinc plated and blue passivated 
  • A4-80 stainless steel (Type AB), A4-70 stainless steel (Type AS) 

Base Material:

Cracked and non-cracked concrete: C20/25 to C50/60

Approval:

ETA-06/0123 – Option 1 – Carbon steel, zinc plated

Load Range:

Tension: Nperm = 2.4 - 37.2 [kN]
Shear: Vperm = 5.2 - 54.9 [kN]

Product Range:

AB: M6 - M16, carbon steel, zinc plated and blue passivated / A4 stainless steel
AS: M6 - M16, carbon steel, zinc plated and blue passivated / M6 - M12, A4 stainless steel

Installation:

Installation_Liebig Anchor 

Carbon steel, zinc plated
LIEBIG ANCHOR AB

Carbon steel, zinc plated

Carbon steel, zinc plated

Carbon steel, zinc plated

Permissible loads for single anchors with no influencing edge distances or spacings. Loads are calculated using partial safety factors from ETAG 001 and the characteristic anchor and installation data.

Design calculations shall follow the requirements of ETA-06/0123.

Carbon steel, zinc plated

Carbon steel, zinc plated

Installed Anchor:

Installed Anchor

  1. 1) The permissible loads have been calculated using the partial safety factors for resistances stated in the ETA-approval and a partial safety factor for actions of gF = 1.4. The permissible
    loads are valid for unreinforced concrete and reinforced concrete with a rebar spacing s ≥ 15 cm and reinforced concrete with a rebar spacing s ≥ 10 cm if the rebar is 10 mm or smaller.
     
  2. The permissible shear loads are based on a single anchor without infl uencing concrete edges. For shear loads applied close to an edge (c ≤ 10 hef or 60d) concrete edge failure must be checked per ETAG 001, Annex C, design method A. 
  3. Concrete is considered non-cracked when the tensile stress within the concrete is sL + sR ≤ 0. In the absence of detailed verifi cation sR = 3 N/mm² can be assumed (sL equals the tensile stress within the concrete as a result of external loads, forces on anchors included). 
  4. The permissible bending moments are only valid for the threaded stud type AB (e.g. in case of a distance mounting). 
  5. For spacings smaller than the characteristic values ((i.e. s ≤ scr,N) a calculation per ETAG 001, Annex C, design method A shall be performed. 
  6. The actual edge distance shall not be less than the value of cmin shown in the table. 

A4 stainless steel
LIEBIG ANCHOR AB

A4 stainless steel

A4 stainless steel

A4 stainless steel

Permissible loads for single anchors with no infl uencing edge distances or spacings. Loads are calculated using partial safety factors from ETAG 001 and the characteristic anchor and installation data.

A4 stainless steel

A4 stainless steel

Installed Anchor:

  1. The permissible loads have been calculated using the partial safety factors for resistances stated in the ETA-approval and a partial safety factor for actions of gF = 1.4. The permissible loads are valid for unreinforced concrete and reinforced concrete with a rebar spacing s ≥ 15 cm and reinforced concrete with a rebar spacing s ≥ 10 cm if the rebar is 10 mm or smaller. 
  2. The permissible shear loads are based on a single anchor without infl uencing concrete edges. For shear loads applied close to an edge (c ≤ 10 hef or 60d) concrete edge failure must be checked per ETAG 001, Annex C, design method A. 
  3. Concrete is considered non-cracked when the tensile stress within the concrete is sL + sR ≤ 0. In the absence of detailed verifi cation sR = 3 N/mm² can be assumed (sL equals the tensile stress within the concrete as a result of external loads, forces on anchors included). 
  4. The permissible bending moments are only valid for the threaded stud type AB (e.g. in case of a distance mounting). 
  5. For spacings smaller than the characteristic values ((i.e. s ≤ scr,N) a calculation per ETAG 001, Annex C, design method A shall be performed. 
  6. The actual edge distance shall not be less than the value of cmin shown in the table. 

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